Abstract:
The structure of layered silicates, mainly smectites, and the synthesis of similar minerals, including fixed clays with pores exceeding in size the inlet apertures in zeolites are examined. Such clays are capable of catalysing the reactions of even large molecules, having a kinetic diameter in excess of 1.0 nm, which cannot penetrate into zeolite cavities for steric reasons. Certain reactions occuring in the presence of layered and fixed clay minerals are considered. The bibliography includes 184 references.